How long does it take to regain one's figure after I-131 treatment?

Generally, the time required to regain one's figure after iodine-131 treatment varies from person to person. It mainly depends on the thyroid function status before treatment, individual metabolic differences, and cooperation with diet and exercise. Usually, it takes 3-6 months, although in some cases it may take longer. A detailed analysis is as follows:

If the symptoms of hyperthyroidism were mild before treatment, weight loss was not significant, and thyroid function recovered relatively quickly after treatment, with adherence to a balanced diet and moderate exercise, one's figure may gradually recover within about 3 months. During this period, overeating should be avoided to prevent excess calories being converted into fat.

If hyperthyroidism was severe before treatment, with significant weight loss, or hypothyroidism occurred after treatment, the recovery period may be prolonged to 6 months or even longer. At this time, thyroid hormone dosage should be adjusted under a doctor's guidance to maintain metabolic stability, while maintaining regular exercise such as yoga or swimming, which helps regulate physical capacity and weight.

During the recovery process, diet and exercise intensity should be gradually adjusted according to individual conditions, avoiding excessive dieting or strenuous exercise. Maintaining a regular lifestyle helps balance metabolism and supports steady recovery of one's figure.